The volume draws upon rare documents, including thousands of unpublished letters, in presenting plot synopses of Lovecraft's major works, descriptions of characters in his tales, capsule biographies of his major colleagues and family members, and entries on little known features in his stories, such as his imaginary book of occult lore, the Necronomicon. The volume refers to current scholarship on the issues in question and also supplies the literary, topographical, and biographical sources for key elements in Lovecraft's work. As Lovecraft's renown continues to ascend in the 21st century, this encyclopedia will be essential to an understanding of his life and writings.